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My trucks temp gauge stays cold mostly unless in 4th-5th gear?

I recently had the engine rebuilt(new head and block). When truck is in low gears 1-3rd the temp is really low and doesn't seem to warm up until in 4th gear cruising for a while and sometimes temp will rise if giving some acceleration but drops when down shift or take out of gear. Any thoughts appreciated!

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  • 40 Answers

Do you have a coolant thermostat fitted if not this can make your temp gauge unstable as the stat should not let water though until normal temp is achieved if this is all in order a water pressure test may be needed to check that the head gasket is not letting compression gasses into the water jacket

Posted on Nov 14, 2014

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Posted on Jan 02, 2017

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SOURCE: 93 chevy 1500 4wd trans. shift problems.

Also check your detent cable if is not adjusted correctly it will not shift properly

Posted on Aug 16, 2009

ftw1952
  • 10319 Answers

SOURCE: I have a 2002 GMC

Have the 5th gear trans solenoid checked out at a trans shop. They can listen to what your problem is and also a test drive will pinpoint the troblem much better in person with a qualified transmission technician as well

Posted on Sep 06, 2010

  • 4793 Answers

SOURCE: I have a 98 Volvo s70 with about 135,000 miles on

the first thing to do is fit a new thermostat.cos if stuck open,the water temp WILL go down when cruising.

Posted on Nov 22, 2010

Testimonial: "Great advice! Quick as well."

emissionwiz
  • 76682 Answers

SOURCE: 2002 Grand Am - 2.2L Manual Trans - really sluggish in 5th gear - going 100KM/hr and there is vertually no GO GO when you give it gas and need to down shift if you are going up hill. Seems to be fine

The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM or ECM,ECU), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems can and do cause many drive-ability related problem such as rough idle and other symptoms.

Posted on Nov 03, 2012

  • 5 Answers

SOURCE: I have a 1996 dodge ram 1500 5.2L v8 with a

I hate to tell you but it sounds like your transmission was rebuilt incorrectly and need to be corrected or tossed and start anew, new transmissions for your truck are roughly $1,600. I'm sorry to hear about your problem.

Posted on Sep 26, 2013

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